25pcs set twisted drill for metal HSS+cobalt+ TiN, 135°

Set of 25 cobalt metal drills with titanium nitride coating and cylindrical shank. A 5% cobalt content makes the drill bits more resistant to thermal damage during drilling. The ground helix ensures a low coefficient of friction and the drill bit is efficiently ejected outside the bore hole. This reduces the risk of chips sticking to the drill bit and increases the drilling capacity. This design reduces vibration, which has a positive effect on the durability of the drill bit. The tip angle of 135° ensures perfect centring. The drill provides 40-60% faster drilling compared to standard HSS drills. Suitable for: steel, cast iron, aluminium, copper, brass. Manufactured according to standard DIN338. All packed in a handy, convenient box.

Technical data:

• Drill bit type: Cobalt to Metal with Titanium Nitride Coating
• Drill angle: 135 degrees

• Overall length [mm]	Working length [mm]	Average ca [mm]
  34	12	1
  40	18	1.5
  49	24	2
  30	2.5
  61	33	3
  70	39	3.5
  75	43	4
  80	47	4.5
  86	52	5
  93	57	5.5
  93	57	6
  101	63	6.5
  109	69	7
  109	69	7.5
  117	75	8
  117	75	8.5
  125	81	9
  125	81	9.5
  133	87	10
  133	87	10.5
  142	94	11
  142	94	11.5
  151	101	12
  151	101	12.5
  151	101	13

Completion:

• Number of drill bits per pack: 25 pcs